Bagging Female Flowers in Hybridization — NEET Biology
✅ Asked in NEET 2022If the female parent produces unisexual flowers, there is no need for emasculation. The female flower buds are bagged before the flowers open. When the stigma becomes receptive, pollination is carried out using the desired pollen and the flower rebagged.
When flowering plants produce unisexual flowers, the female flowers naturally lack anthers, so emasculation becomes unnecessary. NTA tests whether students understand that bagging (covering flower buds) is still required to prevent unwanted pollination before the stigma becomes receptive. The common mistake is thinking that unisexual flowers eliminate the need for bagging altogether—students forget that contamination can still occur from external pollen sources. Key point: emasculation is skipped, but bagging remains essential for controlled hybridization. This concept links artificial hybridization techniques to reproductive biology, making it valuable for assessing practical understanding of plant breeding methods.
To ensure that only the desired pollens fall on the stigma in artificial hybridization process [NEET 2022 Phase 2] (a) the female flower buds of plant producing unisexual flowers need not be bagged. (b) there is no need to emasculate unisexual flowers of selected female parent. (c) emasculated flowers are to be bagged immediately after cross pollination. (d) emasculated flowers are to be bagged after removal of anthers. (e) bisexual flowers, showing protogyny are never selected for cross. Choose the correct answer from the options given below:
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